INTERNALERROR for no apparent reason

[yurivict]

Bug report

Tests fail on the QtPy project like this:

cd /usr/ports/devel/py-QtPy/work-py39/QtPy-2.3.1 && /usr/bin/env XDG_DATA_HOME=/usr/ports/devel/py-QtPy/work-py39  XDG_CONFIG_HOME=/usr/ports/devel/py-QtPy/work-py39  XDG_CACHE_HOME=/usr/ports/devel/py-QtPy/work-py39/.cache  HOME=/usr/ports/devel/py-QtPy/work-py39 PATH=/usr/local/libexec/ccache:/usr/ports/devel/py-QtPy/work-py39/.bin:/home/yuri/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin PKG_CONFIG_LIBDIR=/usr/ports/devel/py-QtPy/work-py39/.pkgconfig:/usr/local/libdata/pkgconfig:/usr/local/share/pkgconfig:/usr/libdata/pkgconfig MK_DEBUG_FILES=no MK_KERNEL_SYMBOLS=no SHELL=/bin/sh NO_LINT=YES PREFIX=/usr/local  LOCALBASE=/usr/local  CC="cc" CFLAGS="-O2 -pipe  -fstack-protector-strong -fno-strict-aliasing "  CPP="cpp" CPPFLAGS=""  LDFLAGS=" -fstack-protector-strong " LIBS=""  CXX="c++" CXXFLAGS="-O2 -pipe -fstack-protector-strong -fno-strict-aliasing  "  MANPREFIX="/usr/local" CCACHE_DIR="/tmp/.ccache" BSD_INSTALL_PROGRAM="install  -s -m 555"  BSD_INSTALL_LIB="install  -s -m 0644"  BSD_INSTALL_SCRIPT="install  -m 555"  BSD_INSTALL_DATA="install  -m 0644"  BSD_INSTALL_MAN="install  -m 444" /usr/local/bin/python3.9 -m pytest -k '' -rs -v -o addopts= 
/usr/local/lib/python3.9/site-packages/pytestqt/logging.py:42: PytestDeprecationWarning: The hookimpl QtLoggingPlugin.pytest_runtest_makereport uses old-style configuration options (marks or attributes).
Please use the pytest.hookimpl(hookwrapper=True) decorator instead
 to configure the hooks.
 See https://docs.pytest.org/en/latest/deprecations.html#configuring-hook-specs-impls-using-markers
  @pytest.mark.hookwrapper
========================================================================================== test session starts ==========================================================================================
platform freebsd13 -- Python 3.9.16, pytest-7.2.1, pluggy-1.0.0 -- /usr/local/bin/python3.9
cachedir: .pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/usr/ports/devel/py-QtPy/work-py39/QtPy-2.3.1/.hypothesis/examples')
Using --randomly-seed=1870392973
PySide2 5.15.2 -- Qt runtime 5.15.8 -- Qt compiled 5.15.8
rootdir: /usr/ports/devel/py-QtPy/work-py39/QtPy-2.3.1, configfile: pytest.ini, testpaths: qtpy/tests
plugins: forked-1.4.0, hypothesis-6.68.2, mypy-plugins-1.10.1, cov-2.9.0, randomly-3.12.0, timeout-2.1.0, rerunfailures-10.1, flaky-3.7.0, xdist-2.5.0, env-0.6.2, freezegun-0.4.2, mock-3.10.0, flake8-1.1.1, typeguard-3.0.2, qt-4.1.0
collected 105 items / 1 skipped                                                                                                                                                                         
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/_pytest/main.py", line 270, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/_pytest/main.py", line 323, in _main
INTERNALERROR>     config.hook.pytest_collection(session=session)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/_pytest/main.py", line 334, in pytest_collection
INTERNALERROR>     session.perform_collect()
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/_pytest/main.py", line 667, in perform_collect
INTERNALERROR>     hook.pytest_collection_modifyitems(
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pytest_freezegun.py", line 55, in pytest_collection_modifyitems
INTERNALERROR>     if get_closest_marker(item, MARKER_NAME):
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/pytest_freezegun.py", line 17, in get_closest_marker
INTERNALERROR>     if LooseVersion(pytest.__version__) < LooseVersion('3.6.0'):
INTERNALERROR>   File "/usr/local/lib/python3.9/site-packages/setuptools/_distutils/version.py", line 55, in __init__
INTERNALERROR>     warnings.warn(
INTERNALERROR> DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.

========================================================================================== 1 skipped in 1.84s ===========================================================================================
*** Error code 3

Original bug report: spyder-ide/qtpy#418

What triggers the INTERNALERROR message? Is this like Python panic?
How can this be fixed?

Your environment

• CPython versions tested on: 3.9
• Operating system and architecture: FreeBSD 13.1

[JelleZijlstra]

This error is in pytest, not in the CPython project. Please report it at https://github.com/pytest-dev/pytest.

[CAM-Gerlach]

For the record, I see that they reported it as pytest-dev/pytest#10846

[CAM-Gerlach]

It turns out it was actually an error in an unmaintained third-party Pytest plugin (pytest-freezegun) that they happened to have installed in the same environment in which they were running the QtPy test suite, which can be solved by either running the QtPy tests in a clean environment, or uninstalling that plugin and replacing it with its modern maintained replacement, pytest-freezer.